.about-menu{
    width: 700px;
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    justify-content: space-between;
    background-color: slategray;
}
.about-menu>li>a{
    display: block;
    margin: 0 10px;
    width: 100px;
    text-align: center;
    height: 45px;
    text-decoration: none;
    line-height: 45px;
    color: ghostwhite;
}